6455639093 has 2 divisors, whose sum is σ = 6455639094. Its totient is φ = 6455639092.

The previous prime is 6455639087. The next prime is 6455639147. The reversal of 6455639093 is 3909365546.

6455639093 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6327088849 + 128550244 = 79543^2 + 11338^2 .

It is a cyclic number.

It is not a de Polignac number, because 6455639093 - 2⁴ = 6455639077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6455639023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3227819546 + 3227819547.

It is an arithmetic number, because the mean of its divisors is an integer number (3227819547).

Almost surely, 2^6455639093 is an apocalyptic number.

It is an amenable number.

6455639093 is a deficient number, since it is larger than the sum of its proper divisors (1).

6455639093 is an equidigital number, since it uses as much as digits as its factorization.

6455639093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2624400, while the sum is 50.

The square root of 6455639093 is about 80346.9918105214. The cubic root of 6455639093 is about 1862.0003042938. Note that the first 3 decimals are identical.

The spelling of 6455639093 in words is "six billion, four hundred fifty-five million, six hundred thirty-nine thousand, ninety-three".